title: High performance liquid chromatographic analysis of catecholamines in growing and non-growing Tetrahymena pyriformis.
abstract: Tetrahymena pyriformis, strains NT-1 and W, harvested in logarithmic (growing) and stationary (non-growing) phases, were found by high-performance liquid chromatography to contain considerable quantities of dopamine. In addition, small amounts of epinephrine and norepinephrine were detected. Logarithmic-phase strain NT-1 cells contained 249 +/- 44 pg dopamine/10(6) cells compared to 477 +/- 42 pg/10(6) cells for logarithmic-phase strain W cells for logarithmic-phase strain W cells. The dopamine content of stationary-phase cells was approximately half the value of the logarithmic-phase cells. There was a significant amount of dopamine in the growth medium from stationary-phase cultures and, to a lesser extent, logarithmic-phase cells.
mesh_terms: D000818:Animals; D002395:Catecholamines / Q000378:metabolism*; D002851:Chromatography, High Pressure Liquid; D004298:Dopamine / Q000378:metabolism; D004837:Epinephrine / Q000378:metabolism; D009638:Norepinephrine / Q000378:metabolism; D013769:Tetrahymena pyriformis / Q000254:growth & development* / Q000378:metabolism
chemical_list: D002395:Catecholamines; D004298:Dopamine; D009638:Norepinephrine; D004837:Epinephrine